Abstract
Experimental radio sounding data of the circumsolar plasma, recorded with the help of the Ulysses, Mars Express, Venus Express, and Rosetta spacecraft, have been systematically analyzed. These data were processed via spectral and correlation methods with the aim of detecting quasi-periodic frequency fluctuations. Integral wavelet spectra have been constructed for the purpose of identifying periodic radio frequency fluctuations at different periods. Comparative analysis of the methods for detecting the quasi-periodic disturbances of the radio frequency in the circumsolar plasma has been carried out. It is demonstrated that frequency fluctuations with periods of 1–80 min are observed regularly in radio sounding experiments of the solar wind plasma.
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Original Russian Text © A.I. Efimov, L.A. Lukanina, A.I. Rogashkova, L.N. Samozhaev, I.V. Chashei, M.K. Bird, M. Pätzold, 2013, published in Radiotekhnika i Elektronika, 2013, Vol. 58, No. 5, pp. 477–487.
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Efimov, A.I., Lukanina, L.A., Rogashkova, A.I. et al. Quasi-periodic radio frequency fluctuations in the circumsolar plasma observed during radio sounding experiments. J. Commun. Technol. Electron. 58, 429–439 (2013). https://doi.org/10.1134/S1064226913040074
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DOI: https://doi.org/10.1134/S1064226913040074